After years of exploration and development integration practice

some achievements have been made in Yongchuan Deep Shale Gas Field. However

there is a big difference in productivity of gas well tests in different structural areas

restricting the scale of reserve increment and benefit development. In order to realize a high-yield and enrichment zone in this area and make clear the direction of exploration and development

the key factors of shale gas enrichment in the deep layer of this area

including thick and stable high-quality shale reservoir

favorable structural style

small scale faults without crush

relatively developed natural fractures

relatively large buried depth and good sealing capacity of roof and floor

are summarized through detailed characterization of structural styles and fault distribution rules

detailed description of reservoir characteristics

and analysis of formation pressure characteristics and production rules. In general

this area has high gas abundance and good resource scale.